Electric vehicle (EV) fast recharge station and system

Patent metadata

Field	Value
Publication number	US-10730396-B2
Application number	US-201816018411-A
Country	US
Kind code	B2
Filing date	Jun 26, 2018
Priority date	Mar 24, 2017
Publication date	Aug 4, 2020
Grant date	Aug 4, 2020

Abstract

An electric vehicle (EV) charging station for fast charging (e.g. 5 to 15 minutes) an electric vehicle (EV). The EV charging station can be configured to charge multiple EVs and multiple conventional vehicles at the same time. The EV charging station can include a power source, an electric reservoir receiving power from the power source, an AC to DC power converter for receiving AC power from the power source and converting the AC power to DC power for supplying DC power to the electric reservoir, an EV charger receiving DC power from the electric reservoir; and a first DC to DC converter receiving DC power from the electrical reservoir and converting the DC power to DC power suitable for charging the electrical vehicle.

First claim

The invention claimed is:

1. An electric vehicle (EV) charging station for charging an electric vehicle (EV), the EV charging station comprising:
an AC power source;
an AC to DC power converter connected in circuit with the AC power source, the AC to DC power converter configured and arranged for receiving AC power from the AC power source and converting the AC power to DC power;
a first electrical power reservoir connected in circuit with the AC to DC power converter, the first electrical power reservoir configured and arranged for receiving DC power for charging the first electrical power reservoir from the AC to DC power converter;
a first DC to DC converter connected in circuit with the first electrical power reservoir, the first DC to DC converter configured and arranged for receiving DC power from the first electrical power reservoir and converting the DC power to DC power; and
an EV charger connected in circuit with the first DC to DC converter, the EV charger configured and arranged for receiving DC power from the first DC to DC converter and converting the DC power to DC power suitable for charging the EV, the EV charger comprising a second DC to DC converter,
wherein the first DC to DC converter and second DC to DC converter are electrically connected in circuit between the first electrical power reservoir and the EV when charging the EV.

2. The station according to claim 1 , wherein the AC to DC converter comprises a rectifier configured and arranged for converting the AC power from the power source to DC power, and a third DC to DC power converter for converting the DC power from the rectifier of the AC to DC converter to DC power suitable for charging the first electrical power reservoir.

3. The station according to claim 1 , wherein the AC to DC converter comprises an electric filter configured and arranged for receiving DC power from a third DC to DC converter prior to supplying power to the first electrical power reservoir.

4. The station according to claim 3 , wherein the electric filter is an LC filter.

5. The station according to claim 1 , wherein the first electrical power reservoir comprises a flow battery.

6. The station according to claim 1 , wherein the first electrical power reservoir comprises a Li-ion battery.

7. The station according to claim 1 , further comprising a pump configured for connecting to and charging the EV, the pump is in circuit with the first electrical power reservoir and a second reservoir, the pump is configured and arranged to receive power from the first electrical power reservoir and/or the second electrical power reservoir.

8. The station according to claim 7 , wherein the second electrical power reservoir comprises a Li-ion battery.

9. The station according to claim 1 , wherein the first electrical reservoir comprises a Li-ion battery.

10. The station according to claim 1 , further comprising a pump configured for connecting to and charging the EV, the pump is configured and arranged for selectively providing power for charging the EV from the first electrical power reservoir and/or the second electrical power reservoir.

11. The station according to claim 1 , further comprising a pump configured for connecting to and charging the EV, the pump is configured and arranged for simultaneously providing power for charging the EV from both the first electrical power reservoir and the second electrical power reservoir.

12. The station according to claim 1 , wherein the station is configured and arranged for selectively providing power to the first DC-DC converter from the first electrical power reservoir or from the AC to DC power converter.

13. The station according to claim 1 , wherein the station is configured and arranged for simultaneously providing power to the first DC-DC converter from the first electrical power reservoir and the AC to DC power converter.

14. The station according to claim 1 , further comprising an electronic controller configured and arranged for controlling charging of the first electrical power reservoir.

15. The station according to claim 1 , further comprising a pump comprising a housing or compartment, the pump connected in circuit with the first electrical power reservoir, wherein the EV charger is located within the housing or compartment of the pump.

16. The station according to claim 1 , wherein the station comprises multiple EV chargers.

17. The station according to claim 1 , wherein the station comprises multiple pumps each having an EV charger.

18. The station according to claim 1 , wherein the station is configured and arranged for selectively or simultaneously providing power to the first DC-DC converter from the first electrical power reservoir and the AC to DC power converter.

19. The station according to claim 1 , wherein the station comprises one or more pumps providing both EV charging of EVs and fueling of fuel type vehicles.

20. The station according to claim 19 , wherein the fuel is gasoline.

21. The station according to claim 1 , wherein the charging station is configured to deliver at least 350 kW to recharge the EV.

22. The station according to claim 1 , wherein the charging station is configured to fast charge the EV at charge currents of 400-500 amps.

23. An electric vehicle (EV) charging station for charging an electric vehicle (EV), the EV charging station comprising:
an AC power source;
an AC to DC power converter connected in circuit with the AC power source, the AC to DC power converter configured and arranged for receiving AC power from the AC power source and converting the AC power to DC power;
a first electrical power reservoir connected in circuit with the AC to DC power converter, the first electrical power reservoir configured and arranged for receiving power from the AC to DC power converter;
a first DC to DC converter connected in circuit with the first electrical power reservoir, the first DC to DC converter configured and arranged for receiving power from the first electrical power reservoir;
an EV charger comprising a second DC to DC converter and a second electrical reservoir, the EV charger connected in circuit with the first DC to DC converter, the EV charger configured and arranged for receiving DC power from the first DC to DC converter and converting the DC power from the first DC to DC converter and/or the second electrical power reservoir to DC power for charging the EV,
wherein the first DC to DC converter and the second DC to DC converter are electrically connected in circuit between the first electrical power reservoir and the EV when charging the EV, and
wherein the first electrical power reservoir and/or the second electrical reservoir are connected in circuit with the EV when charging the EV.

24. The station according to claim 23 , wherein the rechargeable battery is a Li-ion battery.

25. The station according to claim 23 , wherein the rechargeable battery is located within a pump.

26. The station according to claim 25 , wherein the second DC to DC converter is located within the pump.

27. The station according to claim 23 , including a current limiter provided between the first DC to DC converter and the rechargeable battery.

28. An electric vehicle (EV) charging station for charging an electric vehicle (EV), the EV charging station comprising:
an AC power source;
an AC to DC power converter connected in circuit with the AC

Assignees

• Noco Co

Inventors

• Stanfield James Richard

Classifications

• H02J2105/37

  exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] · CPC title

• H02J7/575

  Parallel/serial switching of connection of batteries to charge or load circuit · CPC title

• H02J7/70

  characterised by the mechanical construction · CPC title

• H02J7/50

  acting upon multiple batteries simultaneously or sequentially · CPC title

• H02J3/322

  the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging · CPC title